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Syntax
qinq transparent-vlan vlan-id-list
undo qinq transparent-vlan { vlan-id-list | all }
Default
Transparent transmission is disabled for all VLANs.
Views
Layer 2 Ethernet interface view
Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
vlan-id-list: Specifies a space-separated list of up to 10 VLAN items. Each item specifies a
single VLAN ID or a VLAN ID range in the form of
vlan-id1 to vlan-id2. The value range for
VLAN IDs is 1 to 4094. The end VLAN ID must be equal to or greater than the start VLAN ID.
all: Specifies all VLANs.
Usage guidelines
By default, QinQ tags all incoming frames with the PVID on a port. This command disables QinQ to
tag incoming traffic from a list of VLANs. These VLANs are called transparent VLANs.
You can repeat this command to add VLANs to the list of transparent VLANs.
To ensure successful transmission for a transparent VLAN, follow these configuration guidelines:
• Set the link type of the port to trunk or hybrid, and assign the port to the transparent VLAN.
• Do not configure any other VLAN manipulation actions for the transparent VLAN on the port.
• Make sure all ports on the traffic path permit the transparent VLAN to pass through.
• If you use both transparent VLANs and VLAN mappings on an interface, the transparent VLANs
cannot be the following VLANs:
{ Original or translated VLANs of one-to-one, many-to-one, or one-to-two VLAN mappings.
{ Original or translated outer VLANs of two-to-two VLAN mappings.
Examples
# Configure GigabitEthernet 1/0/1 as a trunk port, and assign the port to VLAN 2, VLAN 3, and
VLANs 50 through 100. Enable QinQ on GigabitEthernet 1/0/1, and configure the port to
transparently transmit frames from VLAN 2.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] port link-type trunk
[Sysname-GigabitEthernet1/0/1] port trunk permit vlan 2 3 50 to 100
[Sysname-GigabitEthernet1/0/1] qinq enable
[Sysname-GigabitEthernet1/0/1] qinq transparent-vlan 2
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